28110734858 has 4 divisors (see below), whose sum is σ = 42166102290. Its totient is φ = 14055367428.

The previous prime is 28110734851. The next prime is 28110734887. The reversal of 28110734858 is 85843701182.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22243634449 + 5867100409 = 149143^2 + 76597^2 .

It is not an unprimeable number, because it can be changed into a prime (28110734851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7027683713 + ... + 7027683716.

Almost surely, 2^28110734858 is an apocalyptic number.

28110734858 is a deficient number, since it is larger than the sum of its proper divisors (14055367432).

28110734858 is a wasteful number, since it uses less digits than its factorization.

28110734858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14055367431.

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 28110734858 in words is "twenty-eight billion, one hundred ten million, seven hundred thirty-four thousand, eight hundred fifty-eight".